56 lines
1.2 KiB
Plaintext
56 lines
1.2 KiB
Plaintext
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// RUN: %clang_tsan %s -o %t -framework Foundation
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// RUN: %deflake %run %t 2>&1 | FileCheck %s
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#import <Foundation/Foundation.h>
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#import "../test.h"
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@interface MyClass : NSObject {
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long instance_variable;
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}
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- (void)method:(long)value;
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@end
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@implementation MyClass
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- (void)method:(long)value {
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self->instance_variable = value;
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}
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@end
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int main() {
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NSLog(@"Hello world.");
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barrier_init(&barrier, 2);
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MyClass *my_object = [MyClass new];
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[my_object method:42];
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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[my_object method:43];
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barrier_wait(&barrier);
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});
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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barrier_wait(&barrier);
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[my_object method:44];
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dispatch_sync(dispatch_get_main_queue(), ^{
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CFRunLoopStop(CFRunLoopGetCurrent());
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});
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});
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CFRunLoopRun();
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NSLog(@"Done.");
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return 0;
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}
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// CHECK: Hello world.
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK: Write of size 8
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// CHECK: #0 -[MyClass method:]
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// CHECK: Previous write of size 8
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// CHECK: #0 -[MyClass method:]
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// CHECK: Location is heap block
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// CHECK: Done.
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